Resonator functioning with acoustic volume waves

US7795998B2 · kind B2 · utility

Assignee

• EPCOS AG · DE

Inventors

• Markus Mayer · Taufkirchen, DE
• Wolfgang Sauer · Glückstadt, DE
• Edgar Schmidhammer · Stein an der Traun, DE
• Habbo Heinze · Unterschleißheim, DE
• Andreas Link · Munich, DE
• Christoph Eggs · Rattenkirchen, DE

Key dates

• Filing date: Dec 18, 2006
• Grant date: Sep 14, 2010
• Expiry date: Jun 13, 2027

Classification

• Technology area (CPC H): Electricity
• CPC primary: H03H9/175
• WIPO field: Basic communication processes
• WIPO sector: Electrical engineering

Abstract

A resonator operating with bulk acoustic waves includes a resonator stack. The resonator stack includes a resonator area configured to allow propagation of an acoustic main mode and an acoustic secondary mode. The resonator stack also includes an acoustic mirror that includes a first partial mirror for locking in the acoustic main mode in the resonator area and a second partial mirror for locking in the secondary mode in a resonator space.